What issues have you encountered with Bitcoin  transaction and How do you think it could be improved?

One of my odd experience I had as a newbie around 2014 with Bitcoin Network transaction when I started using Bitcoin (Blockchain technology) are as follow;

[1].Sending Bitcoin to a wrong address that has never been recoverd till date.

[2].High transaction fees.

[3] .Having to wait for almost more than two days for a transaction to be confirmed.

              How could this issues be improved ?
My ideas......

‌[A]. Bitcoin transaction (Blockchain technology) in my view should be improved in such a way ,
That modifications can be to either where a wrongly sent transaction could be reversed when sent to a wrong address,

‌ The system could be improved in such a way that a unique name be attached to a partular address and anonymously the system would detect immediately that the name and address do not tally and hence tag it a wrong  address, A system where this  mistakenly sent transaction can be reversed if requirements for such reversal are met should also be created.
For example
 imagine having billion dollars transaction mistakenly sent to a wrong address where there is no system in place to reverse it.

‌.High Transaction Fees.

‌More system should be created to help cut down the transaction fees incurred when during a transaction so that someone can pay almost zero in the transaction fees.
‌
‌What's your Good Ideas to solving Bitcoin transaction Issues let's discuss.